const { response } = require("express")
const express = require("express")
const router = express.Router()
const bodyParser = require("body-parser")
const mongoose = require("mongoose")
const User = require("./../model/user.js")
const keys = require("./../model/keys.js")
const bcrypt = require("bcrypt")
var sanitize = require("mongo-sanitize")
const fetch = (...args) =>
	import("node-fetch").then(({ default: fetch }) => fetch(...args))
var xss = require("xss")

function isAlphaNumeric(str) {
	var code, i, len

	for (i = 0, len = str.length; i < len; i++) {
		code = str.charCodeAt(i)
		if (
			!(code > 47 && code < 58) && // numeric (0-9)
			!(code > 64 && code < 91) && // upper alpha (A-Z)
			!(code === 95) && // underscore
			!(code > 96 && code < 123)
		) {
			// lower alpha (a-z)
			return false
		}
	}
	return true
}

router.use(bodyParser.json())

router.post("/", async (req, res) => {
	//console.log(req.body)
	let { username, password: plainTextPassword } = req.body
	if (!req.body.captcha) {
		return res.json({ status: "error", error: "Need a valid captcha bozo" })
	}
	if (!username || typeof username !== "string") {
		return res.json({
			status: "error",
			error: "Usernames needs to be sent and it needs to be a string",
		})
	}
	if (!plainTextPassword || typeof plainTextPassword !== "string") {
		return res.json({
			status: "error",
			error: "Password needs to be sent and it needs to be a string",
		})
	}

	if (plainTextPassword.length < 4) {
		return res.json({
			status: "error",
			error: "Password needs to be at least 5 characters",
		})
	}

	if (username.length > 20) {
		return res.json({
			status: "error",
			error: "Username can not be more than 20 characters",
		})
	}

	if (isAlphaNumeric(username) === false) {
		return res.json({
			status: "error",
			error: "Usernames can not have special symbols except for underscores",
		})
	}
	// verify our captcha
	var captchaverifyreq = await fetch("https://hcaptcha.com/siteverify", {
		method: "POST",
		headers: {
			"Content-Type": "application/x-www-form-urlencoded",
		},
		body: new URLSearchParams({
			secret: "0xE05AB1CFB83252696175FA69E526a3048547Cf0d",
			response: req.body.captcha,
			sitekey: "30f6dee1-f765-42d0-ae34-29697c4aa623",
		}),
	})
	var captcha = await captchaverifyreq.json()
	if (captcha.success == false) {
		return res.json({
			status: "error",
			error: "Invalid Captcha. Try again.",
		})
	}

	// check if keys are enabled
	var registration = req.config
	if (registration.RegistrationEnabled === false) {
		return res.json({
			status: "error",
			error: "Registration has been temporarily disabled. Please join our discord.",
		})
	}
	if (registration.KeysEnabled === true) {
		if (!req.body.invitekey) {
			return res.json({
				status: "error",
				error: "Invite key needs to be sent.",
			})
		}

		sanitizedkey = sanitize(req.body.invitekey)
		const key = await keys.findOne({ Key: sanitizedkey }).lean()

		if (!key) {
			// key is invalid
			return res.json({ status: "error", error: "Invalid Key." })
		}

		if (key.Used === true) {
			// key has been used already
			return res.json({
				status: "error",
				error: "Key has been used already.",
			})
		}

		keys.updateOne(
			{ Key: sanitizedkey },
			{
				$set: {
					Used: true,
					UsedBy: username,
				},
			},
			function (err, doc) {
				//console.log(err)
			},
		)
	}

	// if all checks above have succceeded we can proceed with registering in our database
	username = xss(username) // stop anyone doing anything silly :)
	try {
		const password = await bcrypt.hash(plainTextPassword, 10)
		const userid = await User.countDocuments()
		var datetime = new Date()
		var datetimeepoch = new Date().getTime()
		const response = await User.create({
			username,
			password,
			admin: false,
			coins: 15,
			userid,
			moderation: JSON.stringify({
				status: "ok",
				Reason: "None",
				ExpiresIn: "None",
			}),
			joindate: datetime.toISOString().slice(0, 10),
			colors: [
				{ name: "Head", value: 1001 },
				{ name: "Torso", value: 1001 },
				{ name: "Left Arm", value: 1001 },
				{ name: "Right Arm", value: 1001 },
				{ name: "Left Leg", value: 1001 },
				{ name: "Right Leg", value: 1001 },
			],
			lastclaimofcurrency: datetimeepoch,
			membership: "None",
			timesincelastrequest: datetimeepoch,
		})
		//console.log(response)
	} catch (error) {
		if (error.code === 11000) {
			return res.json({
				status: "error",
				error: "Username already in use",
			})
		} else if (error.errors.username.kind === "unique") {
			return res.json({
				status: "error",
				error: "Username already in use",
			})
		}
		throw error
	}

	res.json({ status: "ok" })
})

module.exports = router